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Höchel, Maximilian and Francois, Daniela Gisele (2021) Comparative Assessment of Different Transition Criteria for Crossflow Instabilities. In: 20. STAB-Workshop - Jahresbericht 2021, pp. 35-36. 20. STAB-Workshop 2021, 16.-17.11.2021, Göttingen, Deutschland.
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Abstract
The crossflow (CF) velocity profile of a three-dimensional boundary layer can become unstable and trigger laminar-turbulent transition [1]. The effect can be simulated by Reynolds-averaged Navier-Stokes (RANS) computations using a local correlation-based transition model, for example the γ-Reθt model [2], together with an appropriate model extension that captures the CF-dominated transition [3]. For a high Reynolds number, the current extensions in the DLR TAU code result in transition locations too upstream with respect to the experimental reference locations, and therefore they have to be modified in order to extend their application range. The two existing CF extensions, based on the C1 criterion and a helicity criterion [3], respectively, are investigated to identify the potential of improving them by the recalibration of specific model parameters.
| Item URL in elib: | https://elib.dlr.de/145876/ | |||||||||
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| Document Type: | Conference or Workshop Item (Speech) | |||||||||
| Title: | Comparative Assessment of Different Transition Criteria for Crossflow Instabilities | |||||||||
| Authors: |
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| Date: | 17 November 2021 | |||||||||
| Journal or Publication Title: | 20. STAB-Workshop - Jahresbericht 2021 | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | No | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | No | |||||||||
| Page Range: | pp. 35-36 | |||||||||
| Editors: |
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| Series Name: | Jahresbericht | |||||||||
| Status: | Published | |||||||||
| Keywords: | Transition transport model, Transition criteria, Crossflow | |||||||||
| Event Title: | 20. STAB-Workshop 2021 | |||||||||
| Event Location: | Göttingen, Deutschland | |||||||||
| Event Type: | Workshop | |||||||||
| Event Dates: | 16.-17.11.2021 | |||||||||
| Organizer: | DLR, STAB | |||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||
| HGF - Program: | Aeronautics | |||||||||
| HGF - Program Themes: | Efficient Vehicle | |||||||||
| DLR - Research area: | Aeronautics | |||||||||
| DLR - Program: | L EV - Efficient Vehicle | |||||||||
| DLR - Research theme (Project): | L - Digital Technologies | |||||||||
| Location: | Göttingen | |||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > CASE, GO | |||||||||
| Deposited By: | Francois, Daniela Gisele | |||||||||
| Deposited On: | 05 Jan 2022 10:40 | |||||||||
| Last Modified: | 22 Feb 2022 18:21 |
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